Fastener



June 16, 1925. v 1,542,761

F. S. CARR V FASTENER Y Filed Feb. 1. 1923 Fgg.

Patented J une y1'6, 1925.

UNTEDSTATES PATENT OFFICE;

FRED S. CARR, F NEWTON, MASSACHUSETTS, ASSIGII'ORy T O CARR FASTENERCOM'- l PANY, 0F CAMBRIDGE,

MASSACHUSETTS, i A Comfort-ATIoN'A 0F MASSACHUSETTS.

,FASTENER HApplication led February 1, 1923. Serial N'o.616,292.

o all whom t may concern:` A l Be it known thatI I, FRED S. CARR, tacitizen of the United States, and a resident of Newton, in the county ofMiddlesex, State of Massachusetts, have invented an ImprovementinFasteners, of which the following descriptionpinv connection with theaccompanying drawings, is a specification, like characters on thedrawings representing, like parts.

This invention pertains to improvements inv fasteners, and moreparticularly, though not exclusively, Ato improvementsin fastenersprimarily intended for securing carpets andthe like. It is among theobjects of the invention to present a superior fastener.

In ythe drawings, which show a preferred form of one embodiment of myinvention, and a modification thereof: v

Figure 1 is a plan View of a carpet with the fastener attached thereto;y i Fig. 2 is a plan view on an enlarged scale of the carpet with thepile removed to show the engagement of the socket-holding prongs withthe warp of the carpet;

Fig. 3 is a section on the line 3-3 of Fig. l, being partly in,elevation;

Fig. l is a planfview of the socket prior to attachment thereof to thecarpet.;

Fig. 5 is a section on the line 5 5 of Fig. 3, being partly inelevation; and

Fig. 6 is a vertical section through a modiication of my invention,being partly in elevation.

Referring to the drawings and to the preferred forms of my inventionselected for illustrative purposes, I have shown a stud including a head7, neck 8 and base portion 9 sec'ured to a screw 10 entered in asuitable stud-supportingr part 11, such for instance as the floor of anautomobile. The preferred form of socket illustrated includes a casing13 containing a spring 14,-which mayV be held in place by a top plate 15through which pass socket-securing prongsv 16, herein shown as six innumber, and-top plate securing prongs 17, herein shown as two in number.The socket-securing prongs 16 are passed through the warp of the carpet18 while Straight, andare then deflected outwardly, preferably by thesuitably formed die of a press, so that `they overlie portions of thewarpy of the carpet, preferably having their ends curved down- `slots23, 23 between the stud-receiving wardly through the warp. This prongyconstruction is peculiarly7V Vadvantageous because, whenv an edge ofthecarpet is pulled upwardlyfto yrelease the fastener, the `pull of thecarpetV is into the curve of the prong instead of out of it, as is thecase when thc prongs are deflected inwardly to engage the warp of thecarpet above the socket proper. The outward curvingV of the prongs isalso advantageousy in that for a given size of socket casing a widerarea of carpet warp embraced within the prongs. Where the carpet has apile,.as is usually, the case, the prongs are substantiallyvif notentirely hidden by the pile. The preferred form of spring 14 hereinill'ustrated is stamped from a single sheet of metal to provide astud-receiving aperture 20, a continuous rim 21, slots 22, 22 betweenthe Stud-receiv ing aperture and rim' and communicating a erture and thefirst named slots 22, 22. l',lhe peripheral rim of the socket casing isspaced from the socket opposite the connecting portions 24, 24 betweenthe rim 21 of the spring and what may be termed the jaws 25, 25 so that,as the stud head 7 is entered in the stud-receiving aperture, the Springmay elongate in a direction toward the connectingportions 24, 24, whilethe rim may become narrower at the dimension thereof op posite theconnecting slots 23, 23.

In the preferred form of my invention illustrated in Fig. 3, the studbase 9 is of substantially the same diameter as the socket casing sothat when the carpet above the socket is stepped on, there will be notendency to distort the casing and bind the spring 14.

In the modication of my invention illustrated in Fig. 6, the stud base 9is of substantially smaller dialneter than the socket casing 13', sothat the top of the stud base may pass into the stud-receiving aperture,making the aggregate thickness of therfastener from floor to carpetsomewhat less in the embodiment of my invention shown in Fig. 3. Wherethis construction is used, I preferably throw down a Vrim from thesocket casing to contact with the floorv 11 so that, when the socket isstepped on, no harmful pressure is exerted on the spring. The prongs 16of the modification of my invention preferably spread outwardly asillustrated in Fig. 3, when engaged with the carpet. f

While I have shown and described preferred forms of one embodiment of myinvention, it will be understood that changes involvingv omission,substitution, alteration and'reversal of parts, and even Changes in themode of operation, may be made without departing from the scope of myinvention, which is best defined in the following claims.

' Claims:

l. A `fastener Comprising, in combination, a stud having a head, a neckand a base, a easing presenting a stud-receiving aperture of s'ufiioientdiameter to admit said base, said casing presenting outwardly thrownportions to engage the floor when said stud is entered in said socketand thereby to relieve the spring in said socket of pressure when thecarpet above said casing is subjeoted to pressure.

2. A carpet fastener socket comprising a two-part easing presenting ahousing for a stud-engaging spring, one part of said casing presentingintegral, outthrown, carpetengaging prongs passing through openings inthe other part.

3. A carpet. fastener socket comprising a base having a stud-receivingopening and an upstanding Cylindrical wall, a plurality of Carpetengaging prongs onsaid cylindrioal wall, a stud-engaging spring in saidbase and a Cover plate for said spring secured to said Cylindrical wall,said prongs extending above said cover plate and adapted to be bentoutwardly over the Carpet web. e

4. A carpet fastener socket'Comprising a base having a stud receivingopening and an upstanding wall, a plurality of Carpe"v engaging prongson said wall, a stud-engaging spring in said base and a Cover plate forsaid spring secured to said wall, said cover plate presenting openingsto receive said prongs, and said prongs being arranged to be bentoutwardly and downwardly over the carpet web.

In testimony whereof, I have signed my name to this specification.

FRED S. CARR.

